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A. DORMITZER.

WINDOW CLEANING CHAIR.

No. 319,683. Patented June 9, 1885.

WITNESSES N. PETERS. Plum-Lithographer. Waohinghn, 0.1;

(N0 ModeL) 2 Sheets-Sheet 2.

A. DORMITZER.

WINDOW CLEANING CHAIR.

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ANNA DORMITZER, OF NEXV YORK, N. Y.

WINDOW-CLEANING CHAIR.

SPECIFICATION forming part of Letters Patent No. 319,683,. dated June 9, 1885.

' Application filed April 1, 1885.

T0 aZZ whom it may concern:

Be it known that I, ANNA DORMITZER, a citizen of the United States of North America, and a resident'of the city, county, and State of New York, have invented a new and useful Improvement in WVindow Cleaning Chairs, of which the following is a specification.

This invention relates to a window-cleaning chair for which Letters Patent of the United States numbered 200,441, 206,935, 206,936, 219,234, 244,203, 256,654, and 293,428 have been granted to me; and its object is to add to the efficiency of the chair for certain purposes.

The improvement consists of the combination, with the window-cleaning chair, of an adjustable and removable step-ladder of peculiar construction, whereby the'chair may be not only better adapted for window-cleaning, but also for the use of painters when painting the window frame and sashes, all of which will be hereinafter set forth.

Reference is to be had to the accompanying drawings, forming part of the specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation, showing myimprovement attached to my window-cleaning chair. Fig. 2 is a front elevation of the same. Fig. 3 shows the same, in an enlarged View, folded up for storing away or for transportation.

1n the patents above referred to the construction of my window-cleaning chair has been so fully set forth that no minute description of it is here necessary.

In the drawings, Arepresents a window-sill, B the chair-platform, and O D E F the devices for clamping the chair firmly to the window-sill, so that the rear portion of the platform shall be outside of the window. In this case I dispense with the usual back and side platform-guards, and when the chair is fixed for use mount on it the step-ladder G, as shown in Fig. 1.

To adapt the chair for the ladder, sockets a are secured on the sides of the chair-platform to receive the front legs of the ladder, and on the rear edge of the platform hinge-leaves b are secured, to which the rear legs of the ladder may be hinged. The ladder G is con- (No model.)

structed preferably as follows, i. e.: The front legs, f, are reduced on their lower ends, as shown in Fig. l, in order to enter the chairsockets a, while the rear legs, g, which are hinged at h to the front legs, have hinge-leaves b secured on their lower ends, to correspond ,;with the hinge-leaves b on the said platform.

The ladder may be provided with two or more folding steps.' Three are shown in the drawings. The lower step, t', is hinged or pivoted at both rear corners to the frontlegs at i, and is supported in horizontal operative position, as shown in Fig. 1, by folding braces '6 which extend from said front legs of the ladder. The next step, It, is hinged to the ladder in like manner and supported by folding braces k, and has secured on its tread strap-hinges 7c, which, when open, extend beyond the stepedge,and have their extensions perforated, as indicated at k, Fig. 1. The upper step, Z, is hinged and supported in the same manner as the step It, and on the underside of each of its perforated folding strap-hinges Z is a bolt, Z", whose functions will be hereinafter set forth.

To complete the step-ladder and to make the structure more convenient, effective, and secure, poles or standards S are provided, having collars m secured about them near their upper ends, and holes 0 made through them just below said collars. These standards Sare passed down through the perforations in the strap-hinges k" l, and through corresponding holes, i in the lower step, 2', and then into niortises p, made in the chair-platform, so that the collars m come in contact with the upper faces of the hinges Z and arrest said standards. Then the bolts Z are thrown into the holes 0 in the standards, and then, when the rod 7) is passed through the hinge-leaves b b, the entire structure is securely and firmly fixed on the chair-platform. With this improvement my chair is perfectly adapted for all the uses for which it is intended. The operator, by taking hold of one or the other of the standards S, steadies himself as he goes up the ladder, and,.for his convenience, can suspend a bucket for paint or water from one of the standards, as indicated at P, Fig. 2. This ladder 1nay,on withdrawingthe rod 1)" from thehinges b b, be readily removed from the chair, and may be compactly folded up for storage or transportation, as indicated in Fig. 3, and it is designed to be of so little weight thatit can be easily manipulated and carried by any one.

The standards S may be made hollow and in two or more telescoping sections, so that they may beshortened or lengthened to suit the height of a ladder.

Having thus described my invention I claim as new and desire to secure by Letters Patent- 1. The combination,with a window-cleaning chair of the character herein specified, and provided with ladder-sockets, as a, and hingeleaves, as b, of a step-ladder, G, constructed substantially as herein shown and described, with folding steps, perforated strap-hinges 70 Z, bolts Z rod b, and standards S, all arranged and operating as set forth.

2. In a combined window-cleaning chair and step-ladder, a stepladder constructed substantially as herein shown and described,with lower step perforated for upright standards, and hinged to the front ladder-legs, so that it may be folded up, with next step hinged in like manner and provided with perforated folding strap-hinges that may be extended beyond its tread, and with upper step hinged to the ladder-legs in like manner, and provided with like perforated folding straphinges, and with bolts on said hinges, and with standards adapted to be passed down through the perforated hinges and step into the chair-platform, all arranged substantially as set forth.

3. The eombinatiomwith the step-ladder G, of the standards S, provided with collars m and bolt-holes 0, substantially as and for the purposes described.

4. The combination,withawindow-cleaning chair of the character herein specified, and provided with devices for holding a step-ladder in position on its platform, of a step'ladder having hinged folding steps and provided with devices for securing it in operative position to the said chair, substantially as herein shown and described.

,In testimony that I claim the foregoing as my invention Ihavesigned my name, in presence of two witnesses, this 30th day of March, 1885.

ANNA DORMITZER. Witnesses:

J ACOB J. STORER, HAMILTON RUDDIoK. 

